src/video/windows/SDL_windowsopengles.h
author Cameron Gutman <cameron.gutman@gmail.com>
Sat, 03 Nov 2018 15:46:42 -0700
changeset 13122 830cadcdc1a2
parent 12503 806492103856
permissions -rw-r--r--
Reduce delay to 1 ms in SDL_WaitEventTimeout() and SDL_WaitEvent()

The 10 ms delay effectively caps input polling at 100 Hz and rendering
at 100 FPS if applications use these functions in their event loop. The
delay may also lead to dropped frames even at 60 FPS due if they are
unlucky enough to hit the delay and rendering takes longer than 6 ms.
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org>
     4 
     5   This software is provided 'as-is', without any express or implied
     6   warranty.  In no event will the authors be held liable for any damages
     7   arising from the use of this software.
     8 
     9   Permission is granted to anyone to use this software for any purpose,
    10   including commercial applications, and to alter it and redistribute it
    11   freely, subject to the following restrictions:
    12 
    13   1. The origin of this software must not be misrepresented; you must not
    14      claim that you wrote the original software. If you use this software
    15      in a product, an acknowledgment in the product documentation would be
    16      appreciated but is not required.
    17   2. Altered source versions must be plainly marked as such, and must not be
    18      misrepresented as being the original software.
    19   3. This notice may not be removed or altered from any source distribution.
    20 */
    21 #include "../../SDL_internal.h"
    22 
    23 #ifndef SDL_winopengles_h_
    24 #define SDL_winopengles_h_
    25 
    26 #if SDL_VIDEO_OPENGL_EGL
    27 
    28 #include "../SDL_sysvideo.h"
    29 #include "../SDL_egl_c.h"
    30 
    31 /* OpenGLES functions */
    32 #define WIN_GLES_GetAttribute SDL_EGL_GetAttribute
    33 #define WIN_GLES_GetProcAddress SDL_EGL_GetProcAddress
    34 #define WIN_GLES_UnloadLibrary SDL_EGL_UnloadLibrary
    35 #define WIN_GLES_GetSwapInterval SDL_EGL_GetSwapInterval
    36 #define WIN_GLES_SetSwapInterval SDL_EGL_SetSwapInterval
    37 
    38 extern int WIN_GLES_LoadLibrary(_THIS, const char *path);
    39 extern SDL_GLContext WIN_GLES_CreateContext(_THIS, SDL_Window * window);
    40 extern int WIN_GLES_SwapWindow(_THIS, SDL_Window * window);
    41 extern int WIN_GLES_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context);
    42 extern void WIN_GLES_DeleteContext(_THIS, SDL_GLContext context);
    43 extern int WIN_GLES_SetupWindow(_THIS, SDL_Window * window);
    44 
    45 #endif /* SDL_VIDEO_OPENGL_EGL */
    46 
    47 #endif /* SDL_winopengles_h_ */
    48 
    49 /* vi: set ts=4 sw=4 expandtab: */